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Decatur County, Iowa: environmental and disease records

Cancer mortality in Decatur County is 152.9 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Lung & bronchus deaths at 1.6 times the U.S. rate. Federal databases place 55 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (14), NPDES wastewater discharge permit (13), Auto repair or body shop (mapped facility) (8). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 20 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 40.7396, -93.7859.

How this county ranks in Iowa

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Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for Decatur County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Lung & bronchusDeaths48.430.21.6xSignificant31.7 to 72.22020-2024
Lung & bronchusNew cases77.151.81.49xSignificant53.8 to 107.92019-2023
Melanoma of the skinNew cases27.723.81.16x15 to 47.92019-2023
All cancerNew cases517.8453.41.14xSignificant454.9 to 587.52019-2023
All cancerDeaths152.9143.21.07x121.3 to 191.12020-2024

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for Decatur County
MeasureCountyU.S. medianDifferenceUnit
Premature death9,257.79,842.6-6%years of life lost before age 75 per 100,000
Life expectancy7675.3+1%years
Child mortalityn/a59.8n/adeaths under age 18 per 100,000
Infant mortalityn/a6.2n/adeaths under age 1 per 1,000 live births
Injury deaths79.896.9-18%deaths per 100,000
Drug overdose deathsn/a28.6n/adeaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 20 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

  • Formaldehyde16 per million
  • Carbon Tetrachloride2.92 per million
  • Acetaldehyde1.44 per million
  • Benzene0.68 per million

EPA Air Quality Index

No EPA air quality monitor reports daily AQI for this county.

Regulated facilities, sites and hazards by type

55 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

  • Industrial wastewater discharge14
  • NPDES wastewater discharge permit13
  • Auto repair or body shop (mapped facility)8
  • Air permit holder (minor source)7
  • Gas station (mapped facility)6
  • Wastewater plant (mapped facility)3
  • Commercial airport1
  • Small hazardous waste generator1
  • Heliport1
  • Oil-fired power plant1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

  1. Lamoni Municipal Utilities, Lamoni

    Oil-fired power plant.

    Record ID 1155 (U.S. Energy Information Administration)

    Severity 4

  2. Lamoni Municipal Utilities, Lamoni

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010029922 (U.S. EPA ECHO) Agency record

    Severity 3.8

  3. Davis City Wwtp, Davis City

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110040009399 (U.S. EPA ECHO) Agency record

    Severity 3.5

  4. Lamoni Municipal Utilities, Lamoni

    Air permit holder (minor source).

    EPA FRS registry ID 110010029922 (U.S. EPA ECHO) Agency record

    Severity 3.3

  5. Grand River Wwtp, Grand River

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110039690910 (U.S. EPA ECHO) Agency record

    Severity 3

  6. Leon Wwtp, Leon

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110039697352 (U.S. EPA ECHO) Agency record

    Severity 3

  7. Weldon City Of Stp, Weldon

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010030304 (U.S. EPA ECHO) Agency record

    Severity 2.8

  8. Van Wert Wwtp, Van Wert

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110009724913 (U.S. EPA ECHO) Agency record

    Severity 2.3

  9. Lamoni Wwtp, Lamoni

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110039988314 (U.S. EPA ECHO) Agency record

    Severity 2

  10. Lamoni Muni, Lamoni

    Commercial airport. O.

    Record ID LWD (FAA / U.S. DOT)

    Severity 2

  11. Wastewater Plant

    Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.

    Record ID way/475705254 (OpenStreetMap contributors) Agency record

    Severity 2

  12. Wastewater Plant

    Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.

    Record ID way/475705255 (OpenStreetMap contributors) Agency record

    Severity 2

  13. Wastewater Plant

    Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.

    Record ID way/475705258 (OpenStreetMap contributors) Agency record

    Severity 2

  14. Van Wert City Of Stp, Van Wert

    Industrial wastewater discharge. No Violation Identified.

    NPDES permit IA0066354: (U.S. EPA NPDES)

    Severity 2

  15. Decatur City Sewer Treatment Plant, Decatur

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110012696626 (U.S. EPA ECHO) Agency record

    Severity 1.8

  16. Leon Water Supply, Leon

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110036257822 (U.S. EPA ECHO) Agency record

    Severity 1.8

  17. Leon Service, Leon

    Small hazardous waste generator.

    EPA FRS registry ID 110005751098 (U.S. EPA ECHO) Agency record

    Severity 1.5

  18. Iowa Dot Rest Area #34 I35 Lamoni, Lamoni

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010030224 (U.S. EPA ECHO) Agency record

    Severity 1.5

  19. Garden Grove City Of Stp, Garden Grove

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010030313 (U.S. EPA ECHO) Agency record

    Severity 1.5

  20. Silverado Feeders, Leon

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110030994896 (U.S. EPA ECHO) Agency record

    Severity 1.5

  21. Grand River Cattle Co, Llc, Grand River

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071711436 (U.S. EPA ECHO) Agency record

    Severity 1.5

  22. Decatur County Hospital, Leon

    Air permit holder (minor source).

    EPA FRS registry ID 110001361099 (U.S. EPA ECHO) Agency record

    Severity 1

  23. Farmers Coop, Lamoni

    Air permit holder (minor source).

    EPA FRS registry ID 110002084841 (U.S. EPA ECHO) Agency record

    Severity 1

  24. Mid West Scrap Metal Recyclers, Lamoni

    Air permit holder (minor source).

    EPA FRS registry ID 110010665896 (U.S. EPA ECHO) Agency record

    Severity 1

  25. Wayne-Ringgold-Decatur Sanitary Landfill, Grand River

    Air permit holder (minor source).

    EPA FRS registry ID 110036165672 (U.S. EPA ECHO) Agency record

    Severity 1

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

No correctional facility with an EPA record is located in this county.

Discovery / public records

Records to request for Decatur County

  • Iowa state cancer registry

    Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in Decatur County, and their findings.

  • Iowa vital statistics office

    Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.

  • Iowa health department, environmental epidemiology

    Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.

  • Iowa environmental agency and the U.S. EPA regional office

    Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.

  • Iowa drinking water program

    Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.

  • Department of corrections or county sheriff

    Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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